How do you bisect an acute angle?

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Answer 1 · 2015-12-13T15:27:09

To bissect #A hat OB#, we construct a rhombus #CODE#.

With a compass, draw a circle [Radius is #r#. Center is #O#.]

Notation: #S(O, r) = S_1#.

#S_1 cap OA = C; S_1 cap OB = D#

Then draw #S(C, r) = S_2 and S(D, r) = S_3#.

#S_2 cap S_3 = {O, E}#

Draw #OE#.

#AhatOE = EhatOB#